How to create an antenna radiation pattern from a crossed Yagi-Uda Antenna

Dear Community,

in the recent days I have worked on a crossed Yagi-Uda Antenna. Therefore I have now a Design but i would like to optimize it with the functions of the "antenna toolbox". And therefore I am looking for example how i can create an Radiation Pattern for the crossed Antenna but unfortunately I am not quite sure how to do because every time when i try it i get the following error:

"Error using em.EmStructures/checkIntersection

Intersection detected in specified geometry.

Error in quadCustom/meshGenerator (line 615)

checkIntersection(obj);

Error in em.MeshGeometry/updateMesh

Error in em.MeshGeometry/getMesh

Error in em.EmStructures/analyze

Error in em.FieldAnalysisWithFeed/pattern (line 182)

analyze(obj,frequency,ElemNumber,parseobj.Results.Termination);

Error in Test2 (line 59)

pattern(yagidesign_1,fc);"

and i guess this Error is comeing from that the mesh is influenting each other (see therefore the following picture).

Can you please give me some guidelines and help to fix this problem? Thank you for your help.

Best Regards.